Thanks Erick! I see. Yes it is a fat jar post shadowJar process (in the order of MBs). It contains solrj and solr-core dependencies plus a few more scala related ones. I guess the solr-core dependencies are unavoidable (right ?), let me try to trim the others.
Regards Aroop > On Feb 10, 2019, at 8:44 PM, Erick Erickson <erickerick...@gmail.com> wrote: > > Aroop: > > How big is your custom jar file? The name "test-plugins-aroop-all.jar" > makes me suspicious. It should be very small and should _not_ contain > any of the Solr distribution jar files, just your compiled custom > code. I'm grasping at straws a bit, but it may be that you have the > same jar files from the Solr distro and also included in your custom > jar and it's confusing the classloader. "Very small" here is on the > order of 10K given it does very little. If it's much bigger than, say, > 15K it's a red flag. If you do a "jar -dvf your_custom_jar" there > should be _very_ few classes in it. > > Best, > Erick > > On Sun, Feb 10, 2019 at 8:33 PM Aroop Ganguly > <aroop_gang...@apple.com.invalid> wrote: >> >> [resending due to bounce warning from the other email] >> >> >> Hi Team >> >> I thought this was simple, but I am just missing something here. Any >> guidance would be very appreciated. >> >> What have I done so far: >> 1. I have created a custom querParser (class SamplePluggin extends >> QParserPlugin { ), which right now does nothing but logs an info message, >> and returns a new LuceneQParser() instance with the same parameters. >> 2. I am on solr 7.5 and I have added the path to the jar and >> referenced the plugin in the following ways in my solrconfig.xml: >> >> <lib path="/Users/aroopganguly/libs/test-plugins-aroop-all.jar" /> >> <queryParser name="sampleparser" >> class="com.aroop.plugins.SamplePluggin"/> >> >> Now when I create a collection with this solrconfig, I keep getting this >> exception stack: >> I have tried debugging the live solr instance and for the life of me, I >> cannot understand why am I getting this cast exception >> 2019-02-11 03:57:10.410 ERROR (qtp1594873248-62) [c:cvp2 s:shard1 >> r:core_node2 x:testCollection_shard1_replica_n1] o.a.s.h.RequestHandlerBase >> org.apache.solr.common.SolrException: Error CREATEing SolrCore >> 'testCollection_shard1_replica_n1': Unable to create core >> [testCollection_shard1_replica_n1] Caused by: class >> com.aroop.plugins.SamplePluggin >> at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1087) >> at >> org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$247(CoreAdminOperation.java:92) >> at >> org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:360) >> at >> org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:395) >> at >> org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:180) >> at >> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:199) >> at >> org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:734) >> at >> org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:715) >> at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:496) >> at >> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:377) >> at >> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323) >> at >> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634) >> at >> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533) >> at >> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) >> at >> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) >> at >> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) >> at >> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) >> at >> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) >> at >> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) >> at >> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317) >> at >> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) >> at >> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) >> at >> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) >> at >> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) >> at >> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219) >> at >> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) >> at >> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219) >> at >> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126) >> at >> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) >> at >> org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335) >> at >> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) >> at org.eclipse.jetty.server.Server.handle(Server.java:531) >> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352) >> at >> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260) >> at >> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281) >> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102) >> at >> org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118) >> at >> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) >> at >> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) >> at >> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) >> at >> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) >> at >> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) >> at >> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762) >> at >> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680) >> at java.lang.Thread.run(Thread.java:745) >> Caused by: org.apache.solr.common.SolrException: Unable to create core >> [testCollection_shard1_replica_n1] >> at >> org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1159) >> at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1048) >> ... 44 more >> Caused by: org.apache.solr.common.SolrException: Error Instantiating >> queryParser, com.aroop.plugins.SamplePluggin failed to instantiate >> org.apache.solr.search.QParserPlugin >> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1014) >> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:869) >> at >> org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1138) >> ... 45 more >> Caused by: org.apache.solr.common.SolrException: Error Instantiating >> queryParser, com.aroop.plugins.SamplePluggin failed to instantiate >> org.apache.solr.search.QParserPlugin >> at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:813) >> at org.apache.solr.core.PluginBag.createPlugin(PluginBag.java:141) >> at org.apache.solr.core.PluginBag.init(PluginBag.java:277) >> at org.apache.solr.core.PluginBag.init(PluginBag.java:266) >> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:963) >> ... 47 more >> Caused by: java.lang.ClassCastException: class >> com.aroop.plugins.SamplePluggin >> at java.lang.Class.asSubclass(Class.java:3404) >> at >> org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:541) >> at >> org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:488) >> at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:792) >> ... 51 more >> >> Aroop Ganguly >> Siri Data | Metrics Platform >>